cad

The first lesson of MangoJelly's FreeCAD 0.20 beginner course, covering setup, preferences and navigation. The series teaches fundamentals through complete workflows such as sketching, Part Design and STL export.

The introduction to MangoJelly's beginner course for FreeCAD 1.0. The course teaches solid modeling with the Part Design, Sketcher and Part workbenches.

Veritasium examines research suggesting science explainer videos like Khan Academy's make students feel they understand while tests show they have not learned, because misconceptions go unaddressed. It suggests how to partly fix this.

Mark Rober builds a machine that plays the Cyclone arcade game with perfect timing and discovers the game is rigged so that perfect play still loses. The video explains the physics and electronics tricks behind carnival-style skill games.

Larry McEnerney of the University of Chicago Writing Program argues that good writing is defined by what readers value, not by rules or the writer's own ideas. He explains why academic habits fail outside academia and how to write so readers find the work valuable.

Shawn Hymel of DigiKey introduces KiCad and explains how printed circuit boards are manufactured. It is the first part of a beginner series that builds a 555 badge project.

A roughly three-hour screen recording of designing a barebones STM32F4 board in KiCad, covering schematic, four-layer layout and routing, USB and a buck converter. It ends with ordering manufacture and assembly through JLCPCB.

A 100-minute tutorial from Phil's Lab on designing an STM32-based 'black pill' PCB in KiCad 6. It covers schematic capture, two-layer layout and routing, USB, and sending the board for manufacture and assembly.

A review of the Symbolics Space Cadet keyboard, with its Honeywell Hall effect switches, including how it sounds and feels, and a typing demonstration. It is part of a series of vintage keyboard reviews.

NCommander investigates why Space Cadet Pinball disappeared from Windows Vista, building on Raymond Chen's explanation about 64-bit incompatibility. He tests it on 64-bit Windows including Itanium and walks through the debugging.

A short, ironic Cadillac ELR 2014 commercial celebrating long working hours and the American dream, which has been widely mocked.

Sal Khan interviews Elon Musk in a 2013 Khan Academy entrepreneurship series. Musk discusses PayPal, rocket efficiency and reusability, and how he approaches education and learning.

Victoria Warmerdam's Oscar-winning Dutch short film in which a woman fails a series of Captcha tests and is plunged into a strange new reality. It is a dark, Black Mirror-like sci-fi comedy.

Dr. Russell Barkley lectures on the neuroanatomy of ADHD and how to treat it, linking executive function and working memory to the disorder. It is part 3 of a CADDAC series.

Kyle Hill explains what nuclear waste actually is and how it is stored, arguing that the problem was effectively solved decades ago. It covers solid shielded waste and deep geological storage.

Greg Young, who coined CQRS, looks back on a decade of domain-driven design, CQRS and event sourcing at DDD Europe 2016. He discusses where event sourcing applies and how simple its core can be.

Demis Hassabis of DeepMind speaks at Google Zeitgeist, saying human-level AI is decades away but the debate should start now. He covers DeepMind's focus on game-playing agents.

A five-minute lightning demo of VisiData, a terminal tool for exploring and manipulating data. It uses two months of NYC 311 complaint data to drill down, plot points on a virtual map and save selected rows.

Christopher Domas's DEF CON 26 talk on secret processor registers that vendors reserve for third parties holding trusted keys. He examines how users are locked out of parts of their own CPUs.

An excerpt of a C-SPAN interview in which Thomas Sowell argues that preferential admission policies produce mismatch, dropouts and resentment.

GitHub interviews Linus Torvalds on twenty years of Git, from its creation in about ten days as a Linux kernel tool to its role in modern software development. He discusses technical decisions, community contributions and the project's philosophy.

Olivier Giroux's CppCon 2019 talk recounts the roughly ten-year effort to bring std::atomic and the C++ memory model to CUDA GPUs, through ten stories from that work.

Salman Khan's TED 2011 talk on Khan Academy. He shows that it goes beyond video lectures to self-paced practice and analytics for teachers, and argues for filling gaps in understanding.

A 69-minute documentary on the Polybius arcade-game legend. It examines visual, physical and anecdotal evidence, traces the story's source, and concludes the game never existed beyond one website entry.

Sal Khan of Khan Academy gives a TED talk on how AI could transform education, with a personal tutor for every student and a teaching assistant for every teacher. He demos Khanmigo, including features where the AI reasons before responding.

Doug Zongker's deadpan conference presentation of his famously chicken-filled paper, given at the 2007 AAAS humor session. It satirizes academic talks while showing the pitfalls of bad presentation.

Geologist Nick Zentner of Central Washington University gives an hour-long public lecture on the great earthquakes of the Pacific Northwest, including the Cascadia subduction zone and the evidence for past megaquakes. It is part of his Downtown Geology Lecture Series, recorded in Ellensburg in 2016.

Turing Award winner Michael Stonebraker gives the 2018 Donald B. Gillies Memorial Lecture at Illinois. He discusses the gap between academic research and industry problems, publishing incentives, and the influence of large industry users on research.

Joe Rogan interviews Peter Boghossian and James Lindsay, who describe their hoax papers submitted to academic journals in grievance studies. The conversation runs about two hours and covers academic publishing, ideology and victimhood culture.

Sabine Hossenfelder explains why she left academia, criticizing its incentives, funding and career structure. She gives a personal account of the social problems in science.

Sabine Hossenfelder reads a confidential email and uses it to explain her worries about academia and incentives in theoretical physics research. She ties it to her earlier Nature Physics comment on research quality.

Sal Khan of Khan Academy argues that schools push students forward with gaps in their foundations, and that students should instead master concepts at their own pace. He compares it to building a house on an unfinished foundation.

Salman Khan explains why he created Khan Academy, a structured library of video lessons with interactive exercises. He calls on teachers to flip the classroom, with lectures watched at home and homework done in class with teacher help.

The Plasticity creator explains what a geometry kernel is and compares commercial options C3D, ACIS, and Parasolid, describing his months of research and why he chose as he did.

Andrew Huberman's podcast episode on what makes us sleepy, helps us sleep soundly and keeps us alert. It lays out the science and a set of behavioral tools such as light timing.

A TV show about Ivan Sutherland's 1963 MIT thesis software Sketchpad, which ran on the TX-2 computer. It shows a light pen drawing, constraints, snapping, scaling and object-style graphics, foundations of GUIs and CAD.

Matt Adereth's Clojure/conj talk covers the history of keyboards and how he used Clojure generating OpenSCAD to design and build his custom Dactyl ergonomic keyboard, including 3D printing and laser-cut parts.

Medlife Crisis asks whether academic research should sit behind paywalls, covering publisher profit margins, unpaid reviewers, Sci-Hub and Aaron Swartz. It includes an interview with Sci-Hub founder Alexandra Elbakyan.

Lex Fridman interviews mathematician and economist Eric Weinstein about science, mathematics, and society. The conversation ranges across physics, academia, AI and job displacement.

mitxela shows his KiCad plugin that rounds PCB tracks to give circuit boards organic, melted-looking layouts instead of rigid geometric ones.